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💧 Freshwater 🌡️ Tropical

Opsarius Malabaricus

Opsarius malabaricus Jerdon, 1849
Max Length
9.1 cm
Max Weight
-
Lifespan
-
Trophic Level
3.3
Depth
-
Climate
Tropical
Resilience
High
Vulnerability
23.00/100
Typical Length
-
Depth Zone
-

📖 Overview

Opsarius Malabaricus (Opsarius malabaricus), first described by Jerdon, 1849 is a small fish in the family Cyprinidae (order Cypriniformes). Adults typically reach 9.10 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.

Scientific Name
Opsarius malabaricus
Authority
Jerdon, 1849
Habitat
Freshwater
Climate
Tropical
Body Shape
Fusiform / normal
Max Length
9.1 cm
Trophic Level
3.3
Resilience
High
Vulnerability
23.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal soft rays (total): 14; Anal soft rays: 17. Barilius malabaricus can be separated from B. ardens by having a unique color pattern consisting of a single or a double row of spots along the length of the body, the first row with 9-13 round or oval bluish-green spots 1-2 scales high and 1-2 scales wide and the second row, if present, with 3-4 smaller spots reaching up to the anal-fin origin (vs. a row of 7-9 large, vertically-elongate, bluish-green blotches 4-6 scales high and 2-3 scales wide along the length of the body, of which in large adults the first three blotches are fragmented into a smaller row of blotches). It differs from B. ardens by having 5+4+2 (vs. 5+4+3) teeth on fifth ceratobranchial. It can be distinguished from B. canarensis and B. bakeri by having 11½ (vs. 10½) branched dorsal-fin rays and 14½-15½ (vs. 13½) branched anal-fin rays, and having the dorsal and anal fins margined with bright orange (vs. broadly margined with white). It further differs from B. canarensis and B. bakeri by having well-defined gill rakers (vs. fleshy, rudimentary gill rakers) .: fusiform / normal.

🌀 Behaviour

Behavioural data for Opsarius Malabaricus is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; benthopelagic. Tropical

🌿 Ecology

Zone Preferences
💧 Freshwater
Trophic Level
3.3±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00724 × L3.04 (TL)
Max TL
9.1cm
Dorsal Rays
14
Anal Rays
17

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
23.00/100
Low vulnerability
Trophic Level
3.3
Predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Described By
Jerdon, 1849

🦠 Common Diseases

The following diseases are known to affect Opsarius Malabaricus.

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